ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 54, Number 1
JKCSEZ 54(1)
February 20, 2010 

Neutral red5 (BR 5) adsorption from aqueous solution was investigated. New solid adsorbent was prepared from paper sludge incinerated at 250^oC during 2 hours. Experiments were carried out, in batch system, to remove RB5 dye from the synthetic waste water. Maximum adsorption of 374.98 mg/g at pH 5, at room temperature and contact time of 80 min was obtained. The Langmuir and Freundlich adsorption models were applied to interpret the equilibrium isotherm. The Freundlich isotherm fits quite well with the experimental data (with highly regression coefficient R²). The incinerated sludge solid samples untreated and treated with BR5 dye were characterized by FT-IR spectrophotometer.